Isotopic age map of Canada /
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| Format: | Map |
| Language: | English |
| Published: |
Ottawa :
Geological Survey of Canada,
1970.
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| Subjects: |
| Item Description: | "Map 1256A" "Background geology from Map 1251A, Tectonic map of Canada." Shows structural provinces, location of mineral types, dating methods, and designations of research laboratories. Inset: Continental shelf extension, 1:10,000,000. Cartographic material. |
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| Physical Description: | 1 map : color ; 108 x 118 cm. |